13009858 has 16 divisors (see below), whose sum is σ = 20509056. Its totient is φ = 6177600.

The previous prime is 13009823. The next prime is 13009901. The reversal of 13009858 is 85890031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6010 + ... + 7882.

It is an arithmetic number, because the mean of its divisors is an integer number (1281816).

Almost surely, 2^13009858 is an apocalyptic number.

13009858 is a deficient number, since it is larger than the sum of its proper divisors (7499198).

13009858 is a wasteful number, since it uses less digits than its factorization.

13009858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 13009858 is about 3606.9180750330. The cubic root of 13009858 is about 235.1928882612.

Adding to 13009858 its reverse (85890031), we get a palindrome (98899889).

The spelling of 13009858 in words is "thirteen million, nine thousand, eight hundred fifty-eight".